Comment # 36 on bug 1200461 from Thomas Blume

(In reply to Mike DeMicco from comment #35)
> Created attachment 860107 [details]
> strace

Thanks, so it hang at reading file named config below:

/sys/devices/pci0000:00/

IMO, that should not happen.
Acessing a readable sysfs file should not hang the system.
That might be a kernel bug.

kernel-maintainers, could you please take a look?